TAPE DRIVE

[Nobody's Hero]

I have a tape drive that wont communicate. L2000, hot swapable tape drive DDS3. We powered down the system this past weekend to install a power displacement unit on the floor. Now the tape drive is buggy. I reseated all cables. ran an insf -e, swapped out the tape drive with one that is operational. still same problem. I dont see any id confilcts. Anything else I can try short of rebooting?

[Ken Hubnik_2]

Can you post the output from
ioscan -fnkC tape??

[Patrick Wallek]

What exactly do you mean "the tape drive is buggy"? What is it doing? What errors are you seeing?

[Nobody's Hero]

Sure Ken, Thanks.

ioscan -fnkC tape
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 1 0/6/0/0.5.0 stape CLAIMED DEVICE QUANTUM DLT8000
/dev/rmt/1m /dev/rmt/1mn /dev/rmt/c4t5d0BEST /dev/rmt/c4t5d0BESTn
/dev/rmt/1mb /dev/rmt/1mnb /dev/rmt/c4t5d0BESTb /dev/rmt/c4t5d0BESTnb

[Nobody's Hero]

by buggy, I mean, I can't see the device. Tape drive seems to work physicall, inject and eject.

[John Poff]

Hi Robert,

Since you've swapped out the DDS drive and you still have the problem, I'd try swapping out the cable and trying it again. If it still acts up, that narrows it down to the SCSI controller on the system, and it will be time to call HP.

JP

[John Dvorchak]

Could you be a little more specific with the term "buggy"?

[Patrick Wallek]

Try doing an 'ioscan -fnC tape'. Omit the 'k' option so that it does NOT scan the kernel, but goes ahead and scans the hardware.

Let us know what that shows.

[Nobody's Hero]

Patrick, ioscan -fnC shos the same as above.

All, is there any way I can test the SCSI pci card that this drive is plugged into?

[Ken Hubnik_2]

Are there any other devices on this bus? I have seen faulty terminators cause weird problems with devices.

[Nobody's Hero]

Its connected to a 2 port SCSI card, pci. One port is terminated, the other is DDS3

[Nobody's Hero]

I dont think Im seeing the card in sam. The card is in the top left slot (when facing the back of the L).

[Patrick Wallek]

If an 'ioscan -fnC tape' is showing the tape drive, then chances are pretty good that the card is good and the tape drive is at least returning the query from ioscan.

Have you tried inserting a tape in the drive and doing a tar or anything?

Another thing to try would be:

# mt -f /dev/rmt/1m status

It should return something. You could try it with and without a tape in the drive.

[Thayanidhi]

Please post the full output of the ioscan

i.e. "#ioscan -fn"

You can also use stm to diagnose the card.
TT

[Nobody's Hero]

Patrick, ioscan ifnC tape is NOT showing the DDS tape. It olny shows the DLT.

full ioscan:

[Nobody's Hero]

im having trouble figuring out exactly what the card device path is.

[Eugeny Brychkov]

Install and test drive(s) with HP Library and Tape Tools available from http://www.hp.com/cposupport/information_storage/support_doc/lpg50128.html
Eugeny

[Nobody's Hero]

Can someone tell me where I can find a document that explains the slots in back of an L2000. What is an L2000 now? RP something? I still cant figure out what slot(path_ the pci scsi card is in. I know it is slot 11.

[Bill McNAMARA_1]

Have you got STM installed on your box?
export DISPLAY=xstation:0
xstm &

run the diagnostics tools by selecting the device and right click tools/run..

You got an rp5400 series 30 or 70 depending on cpu.

rack parisc 5400!
N=rp7400
A=rp2400

http://www.hp.com/products1/servers/rackoptimized/rp5400series/index.html

see: www.hp.com/go/servers

you'll get used to it!!

Later,
Bill

[Volker Borowski · Accepted solution]

Hi Robert,

are there other devices on the same bus ?
Did you check the controller-type ?
May be something has been re-cabled ?
Might be that the tape (SE / LVD ?) is now connected to an HVD controller ?
Do you see the controller in a normal "ioscan" ?

Additional stuff to check
Volker